45
confirm(verb, support, state, show, increase)
33
substantiate(verb, support, show, increase, present)
32
verify(verb, support, state, show, maintain)
27
authenticate(verb, support, state, show, determine)
27
support(verb, show, increase, maintain, establish)
25
validate(verb, support, state, show, determine)
24
certify(verb, support, state, show, maintain)
23
affirm(verb, support, state, show, maintain)
20
prove(verb, support, state, show, maintain)
19
show(verb, support, state, show, determine)
17
attest(verb, support, state, show, determine)
16
establish(verb, support, show, increase, maintain)
16
ratify(verb, support, show, determine, back)
16
sustain(verb, support, show, increase, determine)
15
bear out(verb, expression, phrasal verb, support, show)
13
back(verb, support, show, present, determine)
13
demonstrate(verb, support, state, show, determine)
13
endorse(verb, support, state, show, establish)
12
strengthen(verb, powerful, story, fortify, verify)
12
uphold(verb, support, show, maintain, determine)
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APASmart Define. (2015). Corroborate thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/corroborate/thesaurus/synonyms
ChicagoSmart Define. 2015. "Corroborate thesaurus" https://smartdefine.org/corroborate/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, Corroborate thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/corroborate/thesaurus/synonyms>.
MLASmart Define. "Corroborate thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/corroborate/thesaurus/synonyms>